Feeding attachment for threshing-machines.



PATENTED SEPT. 25, 1906.

H. H. BOGK'ELMAN. FEEDING ATTACHMENT FOR THRBSHING MACHINES.

APPLICATION FILED FEB. 20, 1906.

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No. 851.927. PATENTED SEPT. 25, 1906.

H. H. BOGKELMAN.

FEEDING ATTACHMENT FOR THRESHING MACHINES APPLICATION FILED FEB. 20. 1906.

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FEEDING ATTACHMENT FOR THRESHING-IVIACHINES.

Specification of Letters Patent.

Patented Sept. 25, 1906.

Application filed February 20, 1906. Serial No. 302,119.

To a whom, it may concern:

Be it known that I, HENRY H. BOCKEL- MAN, a citizen of the United States, residing at Sylvan Grove, in the county of Lincoln and State of Kansas, have invented certain new and useful Improvements in Feeding sprocket-wheel.

Attachments for Threshing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in attachments to threshingmachines for regulating the feed of grain to the cylinder, and comprises means whereby when the grain is fed too fast governor mechanism is operated for throwingthe feeding apparatus out of gear.

The invention consists, further, in the provision of means whereby the feed may be regulated automatically through the medium of mechanism actuated by the advancing grain acting in such a manner as to throw the feed-conveyer out of gear.

The invention consists, further, in'other details of construction and combinations of parts, which will be hereinafter fully described and then specifically defined in the appended claims.

I illustrate my invention in the accompa nying drawings, in which Figure 1 is a side elevation of my invention. Fig. 2 is an end view. Fig. 3 is a longitudinal vertical sectional view showing parts in elevation. Fig. 4 is a detail elevation of the clutchthrowing mechanism. Fig. 5 is a detail perspective view of the clutch and plate for throwing the same. Fig. 6 is an enlarged perspective view of a pressure-bar. Fig. 7 is an enlarged detail view of a portion of the apparatus, Fig. 8 is a detail view of a Fig. 9 is a detail pers ective view of the serrated feeding mem ers and the crankshaft for actuating the same.

Reference now being had to the details of the drawings by letter, A designates standards of the apparatus, in which is journaled a crank-shaft B, (shown clearly in Fig. 2 of the drawings,) having a series of cranks formed therein, and a pulley B is fixed to one end of said shaft and has a belt B assing about the same, and which belt is adapted to wheel I.

be connected to the cylinder of a threshingmachine. (Not shown.)

O designates an endless conveyer, upon which the grain is fed to the cylinder of the threshing-machine and travels about the cylinder, which is shown at C in Fig. 1 of the drawings as mounted upon the shaft C To the cranks of the shaft B are pivotally connected the bars D, which have adjustably held thereon the serrated feeding members D. The rear end of each bar D is connected to a link D which links are pivotally mounted upon a shaft D The shaft D is mounted to have a rocking movement in the vertical slots D, formed in the opposite walls of the frame, and underneath the bars D the grain is'adapted to be fed forward in the direction shown by thearrow in Fig. 3 of the drawings.

F designates the upper surface of the floor of the feeder, from which the grain is fed onto the conveyer C. Rigidly secured in the projections G, extending upward fromthe side walls of the frame, are angular arms G, to each of which is pivotally connected a erforated bar G (shown clearly in Fig. 1 o the drawings,) and said bar has at its lower end an elongated slot G G designates a headed pin mounted in an apertured lug G projecting from the bar G and the lower end of said pin bears against the shaft D. A spring G is interposed between the shaft D and the under surface of said lug G encircling said pin and serving to normally hold the shaft D at its lowest throw.

Referring to Figs. 4 and 5 of the drawings will be seen a loosely-mounted clutch-throwing sleeve H, ournaled upon the shaft C and H designates a clutch-throwing plate which is pivoted at H upon the sleeve H, and said plate H has a movement in one direction limited by a pin H carried by said sleeve. The outer end of the sleeve H has a notch h, which is designed to be engaged by a pin 1, (shown in Fig. 5 of the drawings,) which projects from the inner surface of the sprocketshaft on which the sleeve H is mounted is a headed pin 1 upon which the sprocketwheel I is ournaled, and a spring I is interposed between the outer face of said sprocketwheel and the head of said pin, whereby the pin I may be normally held in engagement with a wall of the notch h. K designates a lever pivoted on a pin K, and one end of said lever is connected to the link G, and the Projecting from the end of the IIC other end is adapted tobe thrown into the pressure of the grainupon the shaft D WVhen path of the rotating plate H and when so positioned to contact with the flange H upon said plate and cause the same to tilt sufficiently in order that the outer end of the plate may contact with the inner face of the sprocket-wheel I and throw the latter out of gear with the sleeve H. A sprocket-chain L passes about a sprocket-wheel L, fixed to the shaft B, and also about a sprocketwheel L which is fixed to a stub-shaft L", mounted on the side. of the frame, said chain also passing over the sprocket-wheel I, and by the lateral movement of the latter the sprocketwheel I will be out of gear with the shell H and the conveyer will stop. Mounted upon a vertical shaft M, journaled in suitable bearings up on one of the standards, is a bevelpinion M, which is in mesh with a similar bevel-wheel M fixed to the shaft N designates a clutch-collar mounted to move vertically upon the shaft M, and N is a collar having lugs which are connected pivotally to the ball-carrying arms 0, which arms are connected by links 0 to the clutch member N. Q designates a lever pivoted on a pin Q, and one end Q of said lever is forked and engages the groove in the circumference of the clutch-collar N, while its other end is adapted to be thrown into the path of the rotating plate H for the purpose of throwing the wheel I out of gear with the sleeve H when the speed of the apparatus slackens sufficiently.

The operation of my apparatus is as follows: Motion being imparted to the shaft B by the belted connection with the cylinder, grain is fed forward by the serrated segmentarms D and onto the conveyor C. In the event of bunches of grain piling up upon the conveyer and feeding the grain too fast the pressure of the bundles coming in contact with. the shaft D and the lower ends of the levers D the shaft D will be raised and the lever K tilted down, so that its free end will be disposed in the path of the pivotal plate H, thus throwing the sprocket-wheel I out of gear with the sleeve H and stopping the forward feeding movement of the shaft 0. In the event of the speed of the cylinder of the threshing-machine slackening the governorballs will fall by gravity as the rotary movement of the shaft slackens, and the lever Q tilting will throw the inner end thereof into the path of the plate H, thus serving as another means for stopping the feed of the conveyer when the latter is not stopped by the the speed increases, the balls will be thrown upward and the inner end of the lever Q will be thrown out of the path of the clutchthrowing plate H, and the movement of the conveyor will be resumed.

From the foregoing it will be noted thatby the provision of the apparatus shown and described simple and efficient means is afforded for automatically regulating the feed of grain to a threshing-machine, such regulation being effected either by pressure of the grain when fed too fast or by the slackening of the feed of the cylinder.

What I claim is 1. A feeding apparatus for threshing-ma chines comprising an endless conveyer, a crank-shaft journaled in suitable standards, bars pivoted to said crank-shaft, feeder-arms upon said bars, pivotal bars mounted upon the frame of the apparatus and provided with elongated slots, ahorizontally-disposed yielding shaft mounted in slots of said bars, link connections between said shaft and levers, a clutch-sleeve mounted upon the conveyershaft, a yielding sprocket-wheel journaled thereon, a pivotal plate mounted upon said sleeve, linkandlever connections with said yielding shaft, whereby as the latter is raised said sprocket-wheel may be thrown out of gear with said sleeve, and sprocket-chain connections with the crank-carrying shaft, as set forth.

2. A feeding apparatus for threshing-machines comprising an endless conveyer, a crank-shaft ournaled in suitable standards, bars pivoted to said crank-shaft, feeder-arms upon said bars, a horizontally-mounted yielding shaft to which said bars are pivoted and mounted above said conveyer, a yielding sprocket-wheel mounted upon the conveyershaft, a clutch-sleeve upon said conveyershaft, a pivotal plate mounted upon said sleeve, a governor-shaft having gear connection with the crank-shaft, a governor-actuated collar mounted upon the governorshaft, a forked pivotal lever actuated. by said collar and adapted to be thrown thereby so that the end of the lever will contact with said plate and throw the sprocket-wheel out of gear with said sleeve, as set forth.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

HENRY H. BOCKELMAN.

Witnesses:

WILL KOBLER, WILLIAM BOCKELMAN. 

